Calendar



July 21, 1925. 1,546,386

I J. JAKOBSEN CALENDAR Filed Oct. 24, 1924 2 Sheets-Sheet l IEJEBZL J ZJANUARYT July 2l, 1925.

J. JAKOBSEN CALENDAR Filed Oct. 24v 1924 2 Sheets-Sheet 2 Vr... HU

gLmAN.

Patented July 2,1? 1925,s Y

JOAKTM JAKoBsEN, or vIKELAND, NEAR KRISTIANSSAND, 1NoawAY.

CALENDAR.

5155-" Application filed October 24, 1924. Serial No. 745,681.`

T all whom t may concern:

Be it known that I, JoAKTM JAKoBsnN, a subject of the King of Norway, and residing -at Hunsfos, Vikeland, near'Kristianssand, Norway, have invented certain new and useful Improvements in a Calendar; and I do hereby declare the following to vbe a full, clear, and exact description of the invention,

- such as will enable others skilled in the art to which it appertains to make and use the same. reference being had to the accompanying drawings, and to letters or Afigures of reference marked thereon, which form a part of this specification.

The present invention has for its objectv a perpetual calendar whichl is* adapted yfor adjustment so as to be used for Aany, number of consecutive years.

According to the present invention the calendar comprises a single band or ribbon which is provided in two parallel rows with the dates from the 1st of January to 31st of December as well as the days of the week repeated continuously.

This band or ribbon which is preferably mounted on two parallel rollers is covered on the front side with a disc or screen, provided with one or more openings for the date and one opening corresponding to a number of consecutive days of the week.

According to one form of the invention the screen is provided with one opening for the date and another opening covering all the seven days of the week, the latter opening being adapted to be closed by slides so as to show only the week day corresponding to the date appearing in the date opening.

According to another form of the invention two date openings are provided, either of which may be opened or covered, and which co-operate with another opening sufficiently large to show four consecutive days of the week.

By covering one of the date openings and three-fourths of the other openings a predetermined date may be adjusted to appear simultaneously with any day of the week.

On the drawings:

Fig. 1 is a. transverse section through one form of the calendar, and

Fig. 2 a front view of the covering screen with its openings.

Fig. 3 is a diagrammatic view of the covering screen with openings according to a modified form of the invention,

As will be seen from Fig, l the calendar comprises a single band or ribbon 2, mounted on two rollers 3 and 4, one or both of which may be provided with handles for winding the 4band 2 from one roller to the other. Numeral l0 indicates the fastening device for the ends of the band. On the front sidethe calendar housing is covered by ajcoverf; v

ing disc or screen 5, having one .opening 6' through which one of the dates printed in .a continuous rowV on the band 2 may be shown, andanother opening 7 sufficiently long to show all the seven days of` a week, the days of the week being V,repeated continuously `in a second row on vthe same band'2. p Theopem. ing 7 is provided on both sides with guides 8 for a number of covering slides 9. These slides 9 may be adjusted or shifted so as'to leave any predetermined part of the opening 7 free, thus making any particular day of the week visible. The slides 9 fit snugly into the guides 8 and are frictionally retained in place. On the 1st of January of each year the band is adjusted, so as to make the date 1st of Januaryvisible through opening 6, and slides 9 are placed so as to make visible the day of the week corresponding to the 1st of January of the particular year.

Instead of using separate slides 9 for covering the parts of the ribbon otherwise visible through opening 7, any other suitable means having similar functions may be utilized.

According to the form diagrammatically illustrated by Fig. 3 the days of the week opening 7 is only large enough to make visible four consecutive days of the week, and two openings 6a and 6b are provided for showing the dates. The distance between the two date openings 6a, 6b is equal to the distance between three days as printed on the band 2, and either of the openings 6, 6* may be used.

If the upper opening 6a is used, it will be noted that the date 1st of January may be shown together with any of the four last days in the week, whereas if the lower opening is used, the 1st of January may be shown together with any of the four first days of the week or vice versa, depending on the placing of the respective columns of days of the Week, and dates, on the band 2. Thus by choosing the correct date opening, the 1st of January and accordingly the following dates ofl the year may be made"visible'l to` gethefvvith any" day of the" week"desired.k

What is claimed is:`

l. In a perpetual' calendar tliezconi'bi'naf tion with a rotatable band provided With the consecutive Vdates of a year arranged in one roW and the days of the Week continuously repeated in another row parallel to'Y tl'ie first, of a Vscreen for covering vsaid band, said screen being p'rovided'wi'tlran openingrfor rendering visible a date provided on the band, and lsaidA screen havingr another openk ing'snfficiently large to render visible'a pflu'f rality' ofcon'secu'tive days' ofthe' Weel on the band, and means for obturating part of. the see'ofn'd opening, so as to maleouly one day of the' Week visible through the same. Y Y

2L Inlr a perpetual calendar, a band, tW'o parallelrotatable rollers, on which thebandl is' mounted, a screenmcovering part of the band between the said'tvvo rollers?, said lbfa'nd5 being provided vWith two parallel` rovv's of consecutive datesv .of the'` year and contini'i: ously, repeated days of the Week respectively, said" screen being' provided' Withva plurality of openings for rendering visible a' date on being provided With tWoparallel roWs of consecutive dates of the year anda contini olusly repeated days of the' Week respectively,

said screen'being provided with an openingA for rendering visible' a date 'on the' band, and" said` screen having y another opening s'uiiv ciently'ilargev :to render: visible' a plurality ofj consecutive daysof a Week on the band, said' last opening being provided Y With shiftable i means to cl's'e part" of the opening', solas to make' only one day of the 'Week visible'.

l In testimony' tha-tlz claim'the forfergoing''asl my invention, Ihavesigned Ymy naine lin' presence' of' tivo subscribing "fwitfnes'sesi 1 l f JOAKIM J'KOBSEN.v

lVitne'sse's il Y y Matas Bumm, OLGA 

